Until now, I edited manually all concerned aspx/ascx for each YAFNET release.

But today I decided to submit a pull request to integrate this feature in the official code, as it's a safe modification for all users, and can help anyone interested in theming.

Please note that I encoutered issues to only highlight modified lines, as the migration from hg to git seems to have broken line-endings. I think that the commit always trigger a full page change, then following commits will better handle differences.